baber/WOPTO huggingface dataset:
Patent GB-940232-A (GB)
Title: Improvements in or relating to electro-mechanical transmissions
IPC: H02P5/50
Filed: 1961-02-07
Abstract: 940,232. Electric selective signalling systems. NATIONAL-STANDARD CO. Feb. 7, 1961 [March 9, 1960], No. 4576/61. Heading G4H. In an electro-mechanical transmission system, the drive ratio between a reference member 17 and a driven member 27 may be varied by adjusting the maximum count of a counter 22 which is supplied with an electrical pulse for each given increment of rotation of member 17, counter 22 supplying a command pulse to a stepping unit 25 each time its maximum count is reached, and unit 25 producing a predetermined increment of rotation of member 27 for each command pulse received. The system shown in Fig. 3 is designed for rapidly positioning member 27 in one of a range of positions which may be represented by an 8-digit number and which differ only in the two least significant digits. The mechanical drive through shafts 60, 62, 58 to differential gear 57 is sufficiently accurate to position member 27 to within 6 significant figures, and counter 22 is preset manually to determine the two least significant digits, the maximum count preset in counter 22 depending on the initial rotation of member 17 which it is desired to transmit, and the number of pulses produced by magnetic tachometer transducer 20 for a given rotation of member 17. In the system of Fig. 4 three control channels are used, each having a variable drive ratio, channel 85 determining the first three significant figures, channel 77 the next three and channel 70 the last two. Stepper 25 may comprise a uniselector type switch which pulses the input leads to a step-bystep motor in succession. In this system, if member 17 is rotated a constant amount to produce a constant number of pulses the position assumed by member 27 is determined solely by the drive ratios selected for the different channels. As shown in Fig. 4 the outputs of the three channels are coupled through differential gears 74, 82 and the output shaft 86 is coupled to member 27 through a further gear train 32, pulse producer 34 and stepping unit 25. The transmission system may be used for the control of machine tools and for winding coils or control grids for electron discharge tubes.
Patent GB-1450223-A (GB)
Title: Pollution control apparatus
IPC: B03C3/014
Filed: 1974-02-01
Abstract: 1450223 Air purifying plant H F OHLE 1 Feb 1974 [22 June 1973] 04738/74 Headings BiR and BIT [Also in Division F4] Air conditioning apparatus for removing grease, smoke and other pollutants from exhaust air from a restaurant comprises an elongate housing having an inlet 26 and outlet 88, water spray nozzles 36 to provide a water spray curtain above a tank 42, a dam at one end of the tank 42 and water spray nozzles (54, Fig. 2) at the other end to cause floating pollutant particles to pass over the dam for removal from the apparatus, a droplet separator 14 having two rows of spaced V- shaped baffles, a section of the housing defining a chamber 18 of increasing cross-sectional area in a downstream direction to slow the air flow, an electrostatic precipitator 20 and a fan 84 for drawing air through the housing. Simultaneously operable pivoted vanes 30 are operable to control the rate of airflow. A filter 16 downstream of separator 14 comprises glass wool or batting 72 between screens 74. The electrostatic precipitator 20 includes spaced negatively charged plates 78 and tungsten wires therebetween which impart a positive charge to pollutant particles. Any liquid particles flow down plates 78 and across a plate 80 to the tank 42. An odour removing filter 22 includes activated charcoal or potassium permanganate.
Patent GB-1048793-A (GB)
Title: Automatic positioning device
IPC: H03J5/16
Filed: 1965-02-03
Abstract: 1,048,793. Motor-driven tuning. CONTINENTAL ELECTRONICS MANUFACTURING CO. Feb. 3, 1965 [Feb. 19, 1964], No. 4759/65. Heading H3Q. [Also in Division H2] Motor-adjusted reactances 3, 4 are ganged with a potentiometer slider 5 for comparison with preselected potentiometers 20, 22 representing desired tuning positions, the difference between the voltages at the sliders energizing the tuning motor 14 with A.C. for coarse adjustment and pulsed D.C. for fine adjustment. Operation of one of the push-buttons S1 S2 energizes relay A or B and by contact a1 or b1 connects the slider of the appropriate preset potentiometer 20, 22 to a comparator 24 in conjunction with slider 5. Network 40, 41, 42 protects the comparator from large signals. The comparator contains a moving-coil meter with a reflecting surface attached to the coil, from which light is directed through a system of optical fibres on to a photo-cell. The latter gives an output whose polarity indicates whether the setting of 5 is above or below the desired value. Assuming switches 44, 46 are in the AUTO position, relay C will be energized if the comparator input is large, and contact c1 will energize relay D from A.C. source 29. One of relays E, F will also be energized by the comparator output, depending on its polarity, and the A.C. voltage from 29 will be applied to the motor 14 via contact d1 and either e1 and d7 or f1 and d4. As the motor adjusts the tuning reactances and the slider 5, the input to the comparator will fall and relay C will drop out, de-energizing relay D by contact c1. The motor 14 is now connected to a D.C. source 36, 50 which is pulsed by a contact 52 to drive the motor in steps to the balance position. Relay contacts e2, e3, f2, f3 ensure that the D.C. is applied to the motor in the correct polarity. The potentiometers 20, 22 are set in the required positions with switches 44, 46 in the SET position. The motor can be caused to run from the A.C. or pulsed D.C. supply without control by the comparator if the switches are in the FAST or SLOW position respectively; the tuning elements are then under manual control.
Patent GB-1453311-A (GB)
Title: Fuel injection apparatus for internal combustion engines
IPC: F02D41/14
Filed: 1973-01-31
Abstract: 1453311 Regulating IC engine fuel injection GKN TRANSMISSIONS Ltd 30 Jan 1974 [31 Jan 1973] 4764/73 Heading F1B [Also in Division G1] A fuel injection apparatus includes an adjustable stop 55 controlling the stroke of the shuttle 52. The stop is adjusted by a three dimensional cam 76 in response to pressure in the chamber 34, the temperature in chamber 34 and either the temperature of the coolant water of the engine, Fig. 2, or temperature of the engine compartment Fig. 5 (not shown) or the temperature derived from burning combustible constituents in the exhaust gases. The pressure in chamber 34 is sensed by an evacuated bellows 71 effecting axial movement of the cam 76. The temperature of the chamber 34 is sensed by a thermostat 85 and temperature of the coolant water passing through a chamber 87 is sensed by a thermostat 86, both axial outputs of the thermostats being added and converted into a rotary output of a member 83 which rotates the cam 76.  The addition mechanism, Fig. 4, comprises two sleeves 88, 89 having interengaging arms and slots 88a, 89a to permit independent axial displacement whilst being rotationally coupled. A spring 92  urges each sleeve against its respective thermostat. A respective helical slot is provided in each sleeve, one 93 co-operating with a fixed pin 94 the other 90 with a pin 91 fixed to an outer rotary sleeve 83. Axial forces applied by the thermostats causes the sleeves 88, 89 to rotate, the resultant rotation of the sleeve 83 being the algebraic sum of these rotations. The temperature parameter may be derived from the exhaust of the engine and transmitted as a heat signal as disclosed in Specification 1453312.
Patent GB-1209551-A (GB)
Title: Single lens reflex camera
IPC: G03B19/12
Filed: 1968-01-30
Abstract: 1,209,551. Single lens reflex cameras. NIPPON KOGAKU K.K. Jan.30, 1968 [Feb.2, 1967 (2)], No.4767/68. Heading G2A. A single lens reflex camera has a partially reflecting mirror 1 movable between a first position (as shown) and a second position to enable a photograph to be taken; a built-in exposure meter having a pivoted photo-sensitive element 12; and a light shielding means associated with the mirror which means, in the position shown, allows light to fall on the element 12, and in the second position of the mirror prevents stray light entering the camera via its view-finder eye-piece E from falling on film being exposed. The light shielding means consists of two relatively slidably apertured plates 2, 5 one of which supports the mirror 1. In the first position, the apertures are aligned, whereas in the second position Fig. 2 (not shown) by virtue of the displayed shaft 11 about which the plate 5 pivots, the apertures in each plate are blocked by opaque areas in the other. In another embodiment Figs. 4, 5 (not shown), a guide member (30) displaces one of the plates relative to the other as they are moved to the second position.
Patent GB-251380-A (GB)
Title: Improvements relating to wheels and axles for railroad and similar vehicles
IPC: B60B37/06
Filed: 1925-02-20
Abstract: 251,380. Oxlade, H. J. W. Feb. 20, 1925. Axles.-A wheel and axle assembly for railway and similar vehicles comprises a pair of wheels connected to one another by an intermediate axle portion e, and journals d spigoted into the hubs of the wheels; the journals may be removably inserted in the hubs of the wheels and held independently of the means whereby the wheel pair is assembled with the axle portion. In Fig. 1, the axle portion e is bolted to the web of the wheel which may be dished and the journal d is spigoted into the wheel and secured by a nut f. The spigot c may be cone-shaped and secured by a nut or a cottar or it may be cylindrical and secured by a. set screw or the end may be riveted over.
Patent GB-902060-A (GB)
Title: An assembly of structural elements prefabricated in concrete
IPC: E04B2/56
Filed: 1961-02-09
Abstract: 902,060. Floors; ceilings; beams; posts. LAZZI, F. Feb. 9, 1961 [Aug. 8, 1960], No. 4811/61. Classes 20 [1] and 20 (4). A floor or ceiling comprises prefabricated V- section concrete beams arranged side-by-side, each beam having flanges extending along its free edges so that adjacent flanges of two beams lie in the angle defined by the adjacent sides of the beams, clamping means being provided to hold the flanges together. In Fig. 11, the floor beams 12 have depending flanges 12a clamped together by channel members 14 secured by bolts 16 or by tie rods 17 connecting the floor to pilasters 21. Floor slabs 13 with rabbeted edges are supported by the beams which in turn are supported by masonry walls or by pilasters as shown consisting of two truncated hollow pyramids of asymmetrical form, the truncated ends 4 being secured together by tie rods 6. The beams consisting of three sections A, B, C, Fig. 6, connected together at their flanged ends 9, 10 taper both in width and depth, the part of maximum cross-section being near one end of the beam and supported by pilasters. The short length of beam beyond the pilasters consists of tapered multiple V-section ribs 12b converging towards the lowermost point of the beam, and may project to form a balcony terrace &c. The beams may all taper in the same direction to form a sector-shaped floor, or alternate beams may taper in opposite directions. In a ceiling, Fig. 17, the beams 26 are inverted with their flanges 26a directed upwardly and connected by channel members 29. Each channel member has two extensions 29b of different heights ending in V-shaped recesses for supporting overlapping portions of the roof. The roof consists of inverted V-section beams 30 with their free edges supported in troughs 31 resting on the extensions 29b. The beams 12, 26 and 30 are made of mesh-reinforced concrete. Specification 897,476 is referred to.
Patent GB-178985-A (GB)
Title: Improvements in or relating to means for facilitating the washing of clothes
IPC: D06F5/04
Filed: 1921-02-11
Abstract: 178,985. Furnival, J. Feb. 11, 1921 Washing-dollies; washing machines with axially-moving plungers and dollies.-Consists in an adjustable spring device for raising dollies automatically after they have been pressed down on the clothes. The dolly stick 2, Fig. 1, passes through a hole in a bracket 1 attached to the washing-tub, and has coiled round it a compression spring 4, which presses at its lower end against the bracket and at it upper end against an adjustable shoulder 5. Fig. 3 shows a modification in which a tension spring f is coiled about the shaft below the bracket a, which extends across the tub, and is adapted to fit tubs of various sizes.
Patent GB-1484103-A (GB)
Title: Electrophotographic copying apparatus
IPC: G03G15/30
Filed: 1975-02-05
Abstract: 1484103 Feeding sheets IWATSU ELECTRIC CO Ltd 5 Feb 1975 [1 March 1974 (2)] 4820/75 Heading B8R In a device for feeding copy sheets Y to a transfer printing station adjacent the rotary drum 102 of an electrophotographic copying machine, a sheet Y is first fed from a magazine 111 by rollers 112 between a guide formed by parallel metal sheets 127, 128 up against rollers 132 which temporarilly arrest the sheet Y and then forward it to the drum 102, the drive for the rollers 112, 132 being actuated by cams A, B keyed to the drum shaft 102a, and the actuation of the cams being so timed that the feeding device, which is liable to generate vibration or shock transmittable to the rotary drum, is not operated during that segment of the rotation of the drum 102 in which the drum is exposed to imaging light.
Patent GB-390612-A (GB)
Title: Improved means for mounting electric connectors and other fittings in insulators
IPC: H01R13/42
Filed: 1932-02-18
Abstract: 390,612. Mounting conductors or terminals in insulators. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., 11, Holborn Viaduct, London, and NICHOLS, W. H., Garthowen, Hervines Road, Amersham, Buckinghamshire. Feb. 18, 1932, No. 4882. [Classes 36 and 38 (i).] A means for securing a conductor in a slotted insulator comprises a bar removably mounted in a hole in the conductor adjacent to one end of the slot and projecting over the insulator on opposite sides of the conductor, the bar being provided with set screws which can be tightened up against the insulator or conductor to draw the conductor through the slot, whereby a projection carried by the conductor adjacent to the other end of the slot can be drawn into tight engagement with the insulator. In the construction shown, a strip conductor 3, forming a contact for use in a link disconnecting box, is retained in the slot 2 of a surrounding insulator 1 by a bar 5 which passes through a hole 4 in the conductor and which carries set-screws 6 for engagement with the upper face of the insulator on opposite sides of the conductor. The lower end of the slot 2 is formed with a ledge 8 which is adapted to be engaged by a stop 7 bent out from the conductor 3. To prevent disengagement of the stop 7 and ledge 8 through lateral movement of the lower portion of the conductor, a projection 9 is formed on the conductor 3 near, but oppositely directed, to the stop 7. In order that the bar 5 may be inserted through the hole 4 with the set-screws 6 in situ, the hole 4 may be of inverted T shape. In a modified construction, a set-screw is provided only at one end of the bar, the other end bearing directly against the insulator. Alternatively a single central set-screw may work within an aperture in the conductor so as to press against the conductor and to force the ends of the bar against the insulator.
Patent GB-1493193-A (GB)
Title: Mechanical manipulator or robot
IPC: B21J13/10
Filed: 1975-02-06
Abstract: 1493193 Spring power-storing mechanisms ELECTROLUX AB 6 Feb 1975 [18 Feb 1974] 5094/75 Heading F2S [Also in Divisions B8 and H1] An article transfer mechanism for moving an article from one location to another comprises a vertical movement unit 10, a rotational movement unit 11 mounted on the unit 11 and an arm 12, with a gripper unit 13, mounted on the unit 11. The unit 10 comprises a base-plate 14 with a pillar 18 vertically mounted thereon and a pair of plates (23), Fig. 4 (not shown) vertically displaceable along the pillar. A mounting plate 25 is mounted on the plates (23) and a coil spring 30 acts between the mounting plate 25 and the base-plate 14. A pair of electromagnets 36, 37 are adjustably mounted on the base-plate 14 to define the end positions of the vertical movement and a pair of permanent magnets 48, 49 associated with respective electromagnets 36, 37 are mounted on the plates 23. The unit 11 comprises a base-plate 52 mounted on the mounting plate 25 and a tube 53 mounted on said base-plate 52. A shaft 54 is rotatably mounted in the tube 53 and carries a sleeve 56 to which the arm 12 is mounted. A pair of electromagnets 57, 58 are adjustably mounted on the tube 53 to define the angular end positions of the arm and a pair of permanent magnets 73, 74 are mounted on the shaft 54 to co-operate respectively with the electromagnets 57, 58. A helical spring 62 is connected between the tube 53 and the sleeve 56. The gripper unit 13 is cable activated by an electromagnet 69. In operation to move the arm from the end positions shown to the other end positions, the electromagnet 36 is energized to repulse the permanent magnet 48 and the electromagnet 37 is energized to attract the permanent magnet 49 and the energy in the spring 30 causes the plates 23 and thus the plate 25 and the unit 11 to move vertically. The energy in the spring is substantially dissipated by the time the mid-point of the vertical movement is reached, whereupon energy is then returned to the spring and the vertical motion is completed by the attraction between the electromagnet 37 and the permanent magnet 49, which combination also serves to retain the system in the new end position. The rotary motion is achieved in a similar manner by energizing the electromagnets 57, 58 and the spring 62.
Patent GB-112871-A (GB)
Title: Improved System of Ventilation.
Inventor: STEWART ALEXANDER WILLIAM
IPC: B63J2/02
Filed: 1917-04-11
Abstract: 112,871. Stewart, A. W. April 11, 1917. Forced ventilation.-In a system in which air withdrawn by a fan or the like from one compartment of a ship or other structure is employed to induce a flow of foul air from another compartment by means of an ejector or air inductor, the nozzle 6, through which the discharge from the fan 1 is delivered, is located in the constricted region of a double truncated cone 4 constituting the air inductor.
Patent GB-1425714-A (GB)
Title: Irrigat-on sprinklers
IPC: B05B15/06
Filed: 1973-02-01
Abstract: 1425714 Spray producers AS LE ROUX JOOSTE and J MOMSEN 1 Feb 1973 [19 April 1972] 5175/73 Heading B2F A sprinkler for an irrigation system comprises a body 2 having a throughpassage 3 and a snap fitted distribution cap 10. The cap comprises an annular skirt 11 and an integral and closure 12 joined to the skirt by an inwardly directed step at the upper end of the skirt. The underside of the end closure 12 has radially extending serrations 16 whose troughs 17 extend to a level above the step to define circumferentially spaced spray outlets. The underside of the end closure 12 may be conical to guide the heater to the spray apertures and a ball 28 may be used to break up the spray streams. The cap may be rotated relative to the body by the heater. The sprinkler may be assembled in line by a tool comprising a spike and a socket spanner which complements the body periphery.
Patent GB-216206-A (GB)
Title: Improvements in gas burners
IPC: F23D14/04
Filed: 1923-02-22
Abstract: 216,206. Keith & Blackman Co., Ltd., J., and Keith, G. Feb. 22, 1923. Atmospheric gas burners. -A burner head comprises a metallic cup 1 into which is screwed a tubular member 3 to form a narrow annular passage 5, the bottom wall of the cup being formed with slots 4 leading into the flared inner end of the member 3. The lateral well of the cup is provided with grooves 7 and ports 6 so that, when the cup is screwed into a carrier plate 2, which forms part of the wall of a mixing-chamber, the flame obtained at the outlet of the passage 5 ensures ignition of the main stream of gaseous mixture issuing from the member 3.
Patent GB-960354-A (GB)
Title: Glass sealing
Filed: 1963-02-08
Abstract: A method for sealing together two pieces of glass comprises applying heat thereto from at least one structure and maintaining the structure substantially free from accumulations of solid matter thereon.  Glass faceplates and funnels are sealed together to form cathode-ray tube envelopes by locally heating the edges of the parts to be joined and subsequently passing an electric current through the heated portion to effect the seal.  Volatile constituents from the glass deposited on and oxides formed on burners and electrodes used for sealing are periodically removed by steam jets.  Specification 524,126 is referred to.
Patent GB-124425-A (GB)
Title: New System and Appliance for Warming the Water of Boilers.
Inventor: JAVIER DE BASARRATE
IPC: F22D7/00
Filed: 1919-03-04
Abstract: 124,425. Basarrate, J. de and Casamitjana, J. March 4, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Check lift valves.-A boiler check-valve 3 has its valve member 12 forced against its seat by a spring-pressed plunger 10 in a screwed spindle 6.
Patent GB-835547-A (GB)
Title: Method of and means for fastening or sealing parcels, bags and other articles
IPC: B65B51/04
Filed: 1956-02-21
Abstract: 835,547. Seals. DINGWALL, T. E. Feb. 15, 1957 [Feb. 21, 1956], No. 5393/56. Class 146(2) In a seal comprising a pronged fastening component 1 and a penetrable component 7, in which the prongs 2 are to be forced into the penetrable component, by a clinching tool, and embedded therein in a curved or curled state, one or more of the prongs has at least one barb forming portion 18 spaced from its side edges adapted to project outwardly from the general lie of the prong when the latter is curved or curled The component 1 may have a stiffening bead 4 and a depending rib 5 with a serrated edge 6. Each barb may be formed by a V-shaped incision as at 18, with two separate points, in the form of an equilateral triangle, or within a larger aperture, and may be initially bent outwardly by bending the prong inwardly about the base of the barb. The clinching tool is of known type.
Patent GB-452375-A (GB)
Title: Improvements in or relating to beadings, edgings, mouldings and the like trimmings or finishings
IPC: B60R13/04
Filed: 1935-02-20
Abstract: 452,375. Veneering. BROOKE, A., 37, Ford Street, Coventry. Feb. 20, 1935, Nos. 5417 and 7889. Drawings to Specification. [Class 145 (ii)] [See also Groups X and VIII] A beading or moulding such as used in the upholstery trade and on the inside and outside of vehicles &c. comprises a flexible non-metallic core which may be of rolled or folded fabric, indiarubber, pulp, papier mÔchÚ or of animal, vegetable or mineral fibres bound together by a colloid such as rubber latex, and an outer sheath or covering which may be of wood veneer. The veneer, after softening by hot water or steam, may be pressed on to a core previously treated with adhesive, in a moulding press. Specifications 249,314, [Class 141], and 404,196, [Group X], are referred to.
Patent GB-149645-A (GB)
Title: Improvements in electrically heated device
IPC: H05B3/68
Filed: 1920-02-23
Abstract: 149,645. Landers, Frary, & Clark, (Assignees of Lamb, J. P.). Aug. 11, 1919, [Convention date]. No Patent granted (Sealing fee not paid). Electric stoves, hot-plates, and warmers. - A heating-resistance, preferably a coiled wire e, is wound in a zigzag manner about insulators d of heat-conducting material carried by metal studs c, Fig. 4, having enlarged heads 14 which provide a surface to support a utensil to be heated. The studs c are riveted to a frame formed of channeliron members 11, 12 arranged with their channels opening downwardly and resting on a flange 10 of a base a, which may be of non-conducting material such as mineral wool, or may be lined with mica &c.